Читать книгу The Intellectual Development of Europe (Vol. 1&2) - John William Draper - Страница 5

Table of Contents

The subject of this Work proposed.—Its difficulty.

Gradual Acquisition of the Idea of Natural Government by Law.—Eventually sustained by Astronomical, Meteorological, and Physiological Discoveries.—Illustrations from Kepler's Laws, the Trade-winds, Migrations of Birds, Balancing of Vegetable and Animal Life, Variation of Species and their Permanence.

Individual Man is an Emblem of Communities, Nations, and Universal Humanity.—They exhibit Epochs of Life like his, and, like him are under the Control of Physical Conditions, and therefore of Law.

Plan of this Work.—The Intellectual History of Greece.—Its Five characteristic Ages.—European Intellectual History.

Grandeur of the Doctrine that the World is governed by Law.

The subject proposed.

I intend, in this work, to consider in what manner the advancement of Europe in civilization has taken place, to ascertain how far its progress has been fortuitous, and how far determined by primordial law.

Does the procession of nations in time, like the erratic phantasm of a dream, go forward without reason or order? or, is there a predetermined, a solemn march, in which all must join, ever moving, ever resistlessly advancing, encountering and enduring an inevitable succession of events?

In a philosophical examination of the intellectual and political history of nations, an answer to these questions is to be found. But how difficult it is to master the mass of facts necessary to be collected, to handle so great an accumulation, to place it in the clearest point of view; how difficult it is to select correctly the representative Its difficulty and grandeur. men, to produce them in the proper scenes, and to conduct successfully so grand and complicated a drama as that of European life! Though in one sense the subject offers itself as a scientific problem, and in that manner alone I have to deal with it; in another it swells into a noble epic—the life of humanity, its warfare and repose, its object and its end.

Man is the archetype of society. Individual development is the model of social progress.

Some have asserted that human affairs are altogether determined by the voluntary action of men, some that the Providence of God directs us in every step, some that all events are fixed by Destiny. It is for us to ascertain how far each of these affirmations is true.

Individual life of a mixed kind.

The life of individual man is of a mixed nature. In part he submits to the free-will impulses of himself and others, in part he is under the inexorable dominion of law. He insensibly changes his estimate of the relative power of each of these influences as he passes through successive stages. In the confidence of youth he imagines that very much is under his control, in the disappointment of old age very little. As time wears on, and the delusions of early imagination vanish away, he learns to correct his sanguine views, and prescribes a narrower boundary for the things he expects to obtain. The realities of life undeceive him at last, and there steals over the evening of his days an unwelcome conviction of the vanity of human hopes. The things he has secured are not the things he expected. He sees that a Supreme Power has been using him for unknown ends, that he was brought into the world without his own knowledge, and is departing from it against his own will.

It foreshadows social life.

Whoever has made the physical and intellectual history of individual man his study, will be prepared to admit in what a surprising manner it foreshadows social history. The equilibrium and movement of humanity are altogether physiological phenomena. Yet not without hesitation may such an opinion be frankly avowed, since it is offensive to the pride, and to many of the prejudices and interests of our age. An author who has been disposed to devote many years to the labour of illustrating this topic, has need of the earnest support of all who prize the truth; and, considering the extent and profundity of his subject, his work, at the best, must be very imperfect, requiring all the forbearance, and even the generosity of criticism.

First opinions of savage life. In the intellectual infancy of a savage state, Man transfers to Nature his conceptions of himself, and, considering that every thing he does is determined by his own pleasure, regards all passing events as depending on the arbitrary volition of a superior but invisible power. He gives to the world a constitution like his own. His tendency is necessarily to superstition. Whatever is strange, or powerful, or vast, impresses his imagination with dread. Such objects are only the outward manifestations of an indwelling spirit, and therefore worthy of his veneration.

After Reason, aided by Experience, has led him forth from these delusions as respects surrounding things, he still clings to his original ideas as respects objects far removed. In the distance and irresistible motions of the stars he finds arguments for the supernatural, and gives to each of those shining bodies an abiding and controlling genius. The mental phase through which he is passing permits him to believe in the exercise of planetary influences on himself.

Fetichism displaced by star-worship.

But as reason led him forth from fetichism, so in due time it again leads him forth from star-worship. Perhaps not without regret does he abandon the mythological forms he has created; for, long after he has ascertained that the planets are nothing more than shining points, without any perceptible influence on him, he still venerates the genii once supposed to vivify them, perhaps even he exalts them into immortal gods.

Philosophically speaking, he is exchanging by ascending degrees his primitive doctrine of arbitrary volition for the doctrine of law. As the fall of a stone, the flowing of a river, the movement of a shadow, the rustling of a leaf, have been traced to physical causes, to like causes at last are traced the revolutions of the stars. In events and scenes continually increasing in greatness and grandeur, The idea of government by law. he is detecting the dominion of law. The goblins, and genii, and gods who successively extorted his fear and veneration, who determined events by their fitful passions or whims, are at last displaced by the noble conception of one Almighty Being, who rules the universe according to reason, and therefore according to law.

Its application to the solar system.

In this manner the doctrine of government by law is extended, until at last it embraces all natural events. It was thus that, hardly two centuries ago, that doctrine gathered immense force from the discovery of Newton that Kepler's laws, under which the movements of the planetary bodies are executed, issue as a mathematical necessity from a very simple material condition, and that the complicated motions of the solar system cannot be other than they are. Few of those who read in the beautiful geometry of the 'Principia' the demonstration of this fact, saw the imposing philosophical consequences which must inevitably follow this scientific discovery. And now the investigation of the aspect of the skies in past ages, and all predictions of its future, rest essentially upon the principle that no arbitrary volition ever intervenes, the gigantic mechanism moving impassively in accordance with a mathematical law.

And to terrestrial events.

And so upon the earth, the more perfectly we understand the causes of present events, the more plainly are they seen to be the consequences of physical conditions, and therefore the results of law. To allude to one example out of many that might be considered, the winds, how proverbially inconstant, who can tell whence they come or whither they go! If any thing bears the fitful character of arbitrary volition, surely it is these. But we deceive ourselves in imagining that atmospheric events are fortuitous. Where shall a line be drawn between that eternal trade-wind, which, originating in well-understood physical causes, sweeps, like the breath of Destiny, slowly, and solemnly, and everlastingly over the Pacific Ocean, and the variable gusts into which it degenerates in more northerly and southerly regions—gusts which seem to come without any cause, and to pass away without leaving any trace? In what latitude is it that the domain of the physical ends, and that of the supernatural begins?

All mundane events are the results of the operation of law. Every movement in the skies or upon the earth proclaims to us that the universe is under government.

But if we admit that this is the case, from the mote that floats in the sunbeam to multiple stars revolving round each other, are we willing to carry our principles to their consequences, and recognise a like operation of law among living as among lifeless things, in the organic as well as the inorganic world? What testimony does physiology offer on this point?

And to the organic world.

Physiology, in its progress, has passed through the same phases as physics. Living beings have been considered as beyond the power of external influences, and, conspicuously among them, Man has been affirmed to be independent of the forces that rule the world in which he lives. Besides that immaterial principle, the soul, which distinguishes him from all his animated companions, and makes him a moral and responsible being, he has been feigned, like them, to possess another immaterial principle, the vital agent, which, in a way of its own, carries forward all the various operations in his economy.

Especially to man.

But when it was discovered that the heart of man is constructed upon the recognised rules of hydraulics, and with its great tubes is furnished with common mechanical contrivances, valves; when it was discovered that the eye has been arranged on the most refined principles of optics, its cornea, and humours, and lens properly converging the rays to form an image—its iris, like the diaphragm of a telescope or microscope, shutting out stray light, and also regulating the quantity admitted; when it was discovered that the ear is furnished with the means of dealing with the three characteristics of sound—its tympanum for intensity, its cochlea for pitch, its semicircular canals for quality; when it was seen that the air brought into the great air-passages by the descent of the diaphragm, calling into play atmospheric pressure, is conveyed upon physical principles into the ultimate cells of the lungs, and thence into the blood, producing chemical changes throughout the system, disengaging heat, and permitting all the functions of organic life to go on; when these facts and very many others of a like kind were brought into prominence by modern physiology, it obviously became necessary to admit that animated beings do not constitute the exception once supposed, and that organic operations are the result of physical agencies.

If thus, in the recesses of the individual economy, these natural agents bear sway, must they not operate in the social economy too?

In social as well as individual life.

Has the great shadeless desert nothing to do with the habits of the nomade tribes who pitch their tents upon it—the fertile plain no connection with flocks and pastoral life—the mountain fastnesses with the courage that has so often defended them—the sea with habits of adventure? Indeed, do not all our expectations of the stability of social institutions rest upon our belief in the stability of surrounding physical conditions? From the time of Bodin, who nearly three hundred years ago published his work 'De Republica,' these principles have been well recognized: that the laws of Nature cannot be subordinated to the will of Man, and that government must be adapted to climate. It was these things which led him to the conclusion that force is best resorted to for northern nations, reason for the middle, and superstition for the southern.

Effects of the seasons on animals and plants.

In the month of March the sun crosses the equator, dispensing his rays more abundantly over our northern hemisphere. Following in his train, a wave of verdure expands towards the pole. The luxuriance is in proportion to the local brilliancy. The animal world is also affected. Pressed forward, or solicited onward by the warmth, the birds of passage commence their annual migration, keeping pace with the developing vegetation beneath. As summer declines, this orderly advance of light and life is followed by an orderly retreat, and in its turn the southern hemisphere presents the same glorious phenomenon. Once every year the life of the earth pulsates; now there is an abounding vitality, now a desolation. But what is the cause of all this? It is only mechanical. The earth's axis of rotation is inclined to the plane of her orbit of revolution round the sun.

Let that wonderful phenomenon and its explanation be a lesson to us; let it profoundly impress us with the importance of physical agents and physical laws. They intervene in the life and death of man personally and socially. External events become interwoven in our constitution; their periodicities create periodicities in us. Day and night are incorporated in our waking and sleeping; summer and winter compel us to exhibit cycles in our life.

Individual existence depends on physical conditions.

They who have paid attention to the subject have long ago ascertained that the possibility of human existence on the earth depends on conditions altogether of a material kind. Since it is only within a narrow range of temperature that life can be maintained, it is needful that our planet should be at a definite mean distance from the source of light and heat, the sun; and that the form of her orbit should be so little eccentric as to approach closely to a circle. If her mass were larger or less than it is, the weight of all living and lifeless things on her surface would no longer be the same; but absolute weight is one of the primary elements of organic construction. A change in the time of her diurnal rotation, as affecting the length of the day and night, must at once be followed by a corresponding modification of the periodicities of the nervous system of animals; a change in her orbitual translation round the sun, as determining the duration of the year, would, in like manner, give rise to a marked effect. If the year were shorter, we should live faster and die sooner.

Animal and vegetable life interbalanced by material conditions.

In the present economy of our globe, natural agents are relied upon as the means of regulation and of government. Through heat, the distribution and arrangement of the vegetable tribes are accomplished; through their mutual relations with the atmospheric air, plants and animals are interbalanced, and neither permitted to obtain a superiority. Considering the magnitude of this condition, and its necessity to general life, it might seem worthy of incessant Divine intervention, yet it is in fact accomplished automatically.

Of past organic history the same remark may be made. The condensation of carbon from the air, and its inclusion in the strata, constitute the chief epoch in the organic And also appearances and extinctions determined. life of the earth, giving a possibility for the appearance of the hot-blooded and more intellectual animal tribes. That great event was occasioned by the influence of the rays of the sun. And as such influences have thus been connected with the appearance of organisms, so likewise have they been concerned in the removal. Of the myriads of species which have become extinct, doubtless every one has passed away through the advent of material conditions incompatible with its continuance. Even now, a fall of half-a-dozen degrees in the mean temperature of any latitude would occasion the vanishing of the forms of warmer climates, and the advent of those of the colder. An obscuration of the rays of the sun for a few years would compel a redistribution of plants and animals all over the earth; many would totally disappear, and everywhere new comers would be seen.

Permanence of organisms due to immobility of external conditions.

The permanence of organic forms is altogether dependent on the invariability of the material conditions under which they live. Any variation therein, no matter how insignificant it might be, would be forthwith followed by a corresponding variation in the form. The present invariability of the world of organization is the direct consequence of the physical equilibrium, and so it will continue as long as the mean temperature, the annual supply of light, the composition of the air, the distribution of water, oceanic and atmospheric currents, and other such agencies remain unaltered; but if any one of these, or of a hundred other incidents that might be mentioned, should suffer modification, in an instant the fanciful doctrine of the immutability of species would be brought to its true value. The organic world appears to be in repose, because natural influences have reached an equilibrium. A marble may remain for ever motionless upon a level table; but let the surface be a little inclined, and the marble will quickly run off. What should we say of him, who, contemplating it in its state of rest, asserted that it was impossible for it ever to move?

They who can see no difference between the race-horse and the Shetland pony, the bantam and the Shanghai fowl, the greyhound and the poodle dog, who altogether deny that impressions can be made on species, and see in the long succession of extinct forms, the ancient existence of which they must acknowledge, the evidences of a continuous and Orderly sequence of conditions is followed by orderly organic changes. creative intervention, forget that mundane effects observe definite sequences, event following event in the necessity of the case, and thus constituting a chain, each link of which hangs on a preceding, and holds a succeeding one. Physical influences thus following one another, and bearing to each other the inter-relation of cause and effect, stand in their totality to the whole organic world as causes, it representing the effect, and the order of succession existing among them is perpetuated or embodied in it. Thus, in those ancient times to which we have referred, the sunlight acting on the leaves of plants disturbed the chemical constitution of the atmosphere, gave rise to the accumulation of a more energetic element therein, diminished the mechanical pressure, and changed the rate of evaporation from the sea, a series of events following one another so necessarily that we foresee their order, and, in their turn, making an impression on the vegetable and animal economy. The natural influences, thus varying in an orderly way, controlled botanical events, and made them change correspondingly. The orderly procedure of the one must be imitated in the orderly procedure of the other. And the same holds good in the animal kingdom; the recognized variation in the material conditions is copied in the organic effects, in vigour of motion, energy of life, intellectual power.

When, therefore, we notice such orderly successions, we must not at once assign them to a direct intervention, the issue of wise predeterminations of a voluntary agent; we must first satisfy ourselves how far they are dependent on mundane or material conditions, occurring in a definite and necessary series, ever bearing in mind the important principle that an orderly sequence of inorganic events necessarily involves an orderly and corresponding progression of organic life.